Patents Assigned to Luminit LLC
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Patent number: 11815681Abstract: Systems and methods for reducing glare from a heads-up display (HUD). Internal and external antireflective coatings may be provided on interior and outer surfaces of glass layers surrounding a holographic polymer layer. A substrate guided hologram may be integrated into a HUD to diffract and direct external radiation to the edge of a HUD. An arrangement for forming a substrate guided hologram includes an array of reflectors and a shaped glass block. Antireflective coated glass layers may be index-matched to opposite sides of a holographic polymer film prior to recording a reflection hologram. An inactive playback beam may be used to monitor the diffraction efficiency of a reflection hologram and of a spurious transmission hologram with the recording of the reflection hologram to maximize the difference between the diffraction efficiencies of useful reflection hologram and spurious transmission hologram.Type: GrantFiled: October 27, 2020Date of Patent: November 14, 2023Assignee: LUMINIT LLCInventor: Fedor Dimov
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Patent number: 11680695Abstract: An anti-glare film for a light source is disclosed. The light source may be a light source with a Lambertian distribution, such as an LED light source. The anti-glare film may include a micro-frustum array to reduce the angular distribution of the light source and thus reduce glare. In some implementations, anti-glare film may further include a light shaping diffuser.Type: GrantFiled: June 10, 2022Date of Patent: June 20, 2023Assignee: Luminit LLCInventors: Anthony Ang, Mitch Jansen, Balvinder Gogia
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Patent number: 11592599Abstract: A micro-optic cell design with a regularly spaced micro-lens array, having a series of randomly positioned lenslets that have been digitally overwritten, wherein the overwritten area is greater than 0 up to 100 percent fill, and wherein a light shaping diffuser pattern is placed on top of the lenslets of the micro-optic cell.Type: GrantFiled: April 23, 2020Date of Patent: February 28, 2023Assignee: LUMINIT LLCInventors: Anthony Ang, Casey Scott Irvin, Riberet Almeida
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Patent number: 11469496Abstract: This application discloses an apparatus for minimizing the optical effects of transmissive domes, and for using the dome surfaces to correct for other optical aberrations and distortions. Herein, the inner surface of the dome is designed to correct for unwanted optical effects of the outer surface of the dome and may also be used to correct for other anticipated effects in the overall optical system.Type: GrantFiled: November 15, 2019Date of Patent: October 11, 2022Assignee: Luminit LLCInventor: Russell Kurtz
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Patent number: 11353639Abstract: An array of microstructures or frustums on a substrate for reducing glare for electronic device displays or windows. The microstructures are designed to nearly perfectly align with the pixels on the display to avoid adverse viewing effects, such as Moiré effects. Substantially all light from the environment illuminating the front side of the film containing the microstructures from all angles is not reflected to the primary viewer (often viewing at an angle normal to the film). Light illuminating the microstructure from the environment will reflect off the microstructures at angles greater than a defined threshold outside the primary viewers field of view. Thus, glare to the primary viewer is minimized while glare to other views who view from other angles than the primary viewer is increased. This increased glare for other viewers adds privacy for the viewing by the primary viewer.Type: GrantFiled: August 30, 2021Date of Patent: June 7, 2022Assignee: Luminit LLCInventors: Anthony Ang, Casey Scott Irvin, Riberet Almeida
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Patent number: 11294178Abstract: A transparent holographic diffuser screen that diffracts the light beams of a digital light projector, which focuses a real image in the plane of the aforementioned transparent holographic diffuser screen, which redirects the light to an eyebox at a pre-determined viewing position generating as a set of diffracted diffused beams that can be seen from the eyebox as a flat in-plane image. The transparent holographic diffuser screen may be used to provide either a highest luminance or a largest eyebox. Potential applications include use for automotive applications, which may include applications for displaying videos, playing games, and video conference apps.Type: GrantFiled: August 30, 2021Date of Patent: April 5, 2022Assignee: LUMINIT LLCInventors: Fedor Dimov, Maung Myo Kyaw, John Trung Tran, Angela Liu
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Patent number: 11028997Abstract: An illumination system converting light beams into wide-angle light transmissions including i) a cylindrical member having a cone-shaped depression in a distal end; and ii) a semi-circular member having an inner radial surface adjacent to a sidewall of the cylindrical member; and angled upper and lower annular surfaces extending from the cylindrical member and meeting at an outer radial edge. A light beam entering the proximal end of the cylindrical member strikes a first edge of the cone-shaped depression and is reflected out as a first light transmission; or it strikes a second edge of the cone-shaped depression, is reflected against the upper and lower annular surfaces, and exits the cylindrical member as a second light transmission parallel to the first diffused light transmission. At least one light path passes through a diffuser on the cylindrical member.Type: GrantFiled: July 1, 2020Date of Patent: June 8, 2021Assignee: LUMINIT LLCInventor: Anthony Ang
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Patent number: 10890417Abstract: The Compound Eye Laser Illumination Seeker (CELIS) is a tracking system used to guide items to point at a laser-illuminated target, with the illumination being either pulsed or modulated at either a specific rate or within a range of rates. The CELIS, comprising a multiaperture compound receiver optics (MACRO) to collect the signal, a set of light guides to combine the received light into light representing individual angular sectors and redirect it to detectors whose output represents the illumination signal in that quadrant, a spectral filter, an angle filter, the set of detectors, and processing electronics. The output is an electronic signal indicating the angular difference between the pointing direction of the signal and the pointing direction of the tracking device.Type: GrantFiled: May 7, 2019Date of Patent: January 12, 2021Assignee: LUMINIT LLCInventors: Jun Ai, Fedor Dimov, Russell Kurtz, Emmanuel Gorce
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Patent number: 10788610Abstract: A method for design and fabrication of holographic optical elements for a compact holographic sight is proposed. The method includes use of ray-trace software to design holographic elements having optical power using an intermediate hologram with parameters obtained through minimization of the merit function defining image quality.Type: GrantFiled: September 12, 2019Date of Patent: September 29, 2020Assignee: Luminit LLCInventors: Dmitry Voloschenko, Engin B. Arik, Fedor Dimov, Kevin Yu, Khin Swe Yin, Neven Rakuljic
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Patent number: 10753578Abstract: The invention relates to an illumination system converting light beams into wide-angle light transmissions. It includes i) a cylindrical member having a cone-shaped depression in a distal end; and ii) a semi-circular member having an inner radial surface adjacent to a sidewall of the cylindrical member; and angled upper and lower annular surfaces extending from the cylindrical member and meeting at an outer radial edge. A light beam entering the proximal end of the cylindrical member strikes a first edge of the cone-shaped depression and is reflected out as a first light transmission; or it strikes a second edge of the cone-shaped depression, is reflected against the upper and lower annular surfaces, and exits the cylindrical member as a second light transmission parallel to the first diffused light transmission. At least one light path passes through a diffuser on the cylindrical member.Type: GrantFiled: June 10, 2019Date of Patent: August 25, 2020Assignee: Luminit LLCInventor: Anthony Ang
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Patent number: 10591804Abstract: A plug-and-play fiber-coupled nonlinear optical quantum wave-converter, optimized for quantum communications, comprises a commercial periodically-poled, waveguide-based, nonlinear optical chip, coupled with a pair of substrate-guided holographic (SGH) wavelength division multiplexers (WDM) and a pair of SGH filters; it offers bidirectional difference frequency conversion (DFG) and sum frequency conversion (SFG) simultaneously in a single packaged device.Type: GrantFiled: March 30, 2016Date of Patent: March 17, 2020Assignee: Luminit LLCInventors: Jun Ai, Fedor Dimov, Xiaowei Xia, Selim Shahriar, Russell Kurtz, Chris Griffo
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Patent number: 10534114Abstract: A substrate-guided holographic diffuser has a light-guide section configured to in-couple light and transmit the light within itself via total internal reflection. It can also have a brightness enhancement section that recycles non-diffracted light within the light-guide section. A hologram section that receives light from the light-guide section has a holographic structure defining acceptance conditions and is positioned relative to the internally reflected light such that the internally reflected light meets the acceptance conditions of the holographic structure. The internally reflected light is out-coupled by the holographic structure as a projected image of light scattered from a diffuser.Type: GrantFiled: December 29, 2011Date of Patent: January 14, 2020Assignee: Luminit LLC.Inventors: Dmitry Voloschenko, Fedor Dimov, Kevin Yu, Engin Arik
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Patent number: 10473938Abstract: The present invention is a Substrate guided hologram that allows a wider range of optical devices based on SGHs with improved parameters such as larger NTE displays with a wider field of view, thinner substrates and more compact form factors. The Substrate-Guided Hologram of the subject invention includes a holographic lens which is positioned at an angle to and spaced from a holographic grating, with a mirror located at a diagonal to each of the lens and the grating.Type: GrantFiled: December 29, 2017Date of Patent: November 12, 2019Assignee: LUMINIT LLCInventors: Fedor Dimov, Neven Rakuljic, Seth Coe-Sullivan
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Patent number: 10452025Abstract: Multiple pairs of substrate-guided wave-based holograms (SGWHs) are laminated to a common thin substrate to form a transparent substrate-guided wave-based holographic CHMSL (SGWHC) that diffracts playback LED illumination over a wide angular range. This device is made pursuant to a technique that includes the steps of recording a first set of SGWHs with one setup, that upon playback, will couple and guide the diffracted light inside the substrate, and a second set of SGWHs recorded with another setup, that will diffract and couple the guided light out.Type: GrantFiled: May 5, 2014Date of Patent: October 22, 2019Assignee: LUMINIT LLCInventors: Fedor Dimov, Engin Arik, Jun Ai, Xiaowei Xia, Neven Rakuljlc, Chris Griffo, Jay Perlin, Leo Katsenelenson, Stanley Tafeng Kao, Chinmaya Dharmadhikari
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Patent number: 10451786Abstract: A method for design and fabrication of holographic optical elements for a compact holographic sight is proposed. The method includes use of ray-trace software to design holographic elements having optical power using an intermediate hologram with parameters obtained through minimization of the merit function defining image quality.Type: GrantFiled: August 14, 2018Date of Patent: October 22, 2019Assignee: Luminit, LLCInventors: Dmitry Voloschenko, Engin B. Arik, Fedor Dimov, Kevin Yu, Khin Swe Yin, Neven Rakuljic
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Publication number: 20190317261Abstract: A holographic substrate-guided wave-based see-through display can has a microdisplay, capable of emitting light in the form of an image. The microdisplay directs its output to a holographic optical element, capable of accepting the light in the form of an image. The microdisplay directs its output to a holographic optical element, capable of accepting the image from the microdisplay, and capable of transmitting the light. The holographic optical element couples its output to an elongate substrate, capable of accepting the light from the holographic lens at a first location, and transmitting the light along a length of the substrate by total internal reflection to a second location, the elongate substrate being capable of transmitting the accepted light from the second location.Type: ApplicationFiled: March 18, 2019Publication date: October 17, 2019Applicant: Luminit, LLCInventors: Fedor Dimov, Tin Aye, Kevin Yu, Svetlana Soboleva, Khin Swe Yin, Myo Kyaw, Dmitry Voloschenko
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Patent number: 10281551Abstract: The Compound Eye Laser Illumination Seeker is a tracking system used to guide items to point at a laser-illuminated target, with the illumination being either pulsed or modulated at either a specific rate or within a range of rates. The device comprises a multiaperture compound receiver optics to collect the signal, a set of light guides to combine the received light into light representing individual angular sectors and redirect it to detectors whose output represents the illumination signal in that quadrant, a spectral filter, an angle filter, the set of detectors, and processing electronics. The output is an electronic signal indicating the angular difference between the pointing direction of the signal and the pointing direction of the tracking device.Type: GrantFiled: March 30, 2016Date of Patent: May 7, 2019Assignee: Luminit LLCInventors: Jun Ai, Fedor Dimov, Russell Kurtz
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Patent number: 10281391Abstract: A laser system containing an etalon to reduce the spectral bandwidth and for tuning, with cavity dumping to generate the short pulses is described. The resulting system is stable and not overly complicated. The combination of cavity dumping with an intracavity etalon enables the invention to produce a string of short pulses, each of which has a very narrow spectral bandwidth. Tuning the wavelength over a spectral range that is very small, but much larger than the laser's spectral bandwidth, enables the invention to use dual-wavelength lidar, DIAL, differential spectroscopy, or a combination of these methods to measure the concentration of the desired chemicals with excellent accuracy.Type: GrantFiled: June 2, 2016Date of Patent: May 7, 2019Assignee: LUMINIT LLCInventors: Russell Kurtz, Alkan Gulses
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Patent number: 10274660Abstract: A holographic substrate-guided wave-based see-through display has a microdisplay, capable of emitting light in the form of an image. The microdisplay directs its output to a holographic optical element, capable of accepting the image from the microdisplay, and capable of transmitting the light. The holographic optical element couples its output to an elongate substrate, capable of accepting the light from the holographic optical element at a first location, and transmitting the light along a length of the substrate by internal reflection to a second location, the elongate substrate being capable of transmitting the accepted light from the second location. The substrate couples out what it receives to a transparent holographic optical element, capable of accepting the light transmitted from the substrate and transmitting it to a location outside of the holographic optical element as a viewable image.Type: GrantFiled: November 17, 2009Date of Patent: April 30, 2019Assignee: Luminit, LLCInventors: Fedor Dimov, Tin Aye, Kevin Yu, Svetlana Soboleva, Khin Swe Yin, Myo Kyaw, Dmitry Voloschenko
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Publication number: 20190072702Abstract: A method for design and fabrication of holographic optical elements for a compact holographic sight is proposed. The method includes use of ray-trace software to design holographic elements having optical power using an intermediate hologram with parameters obtained through minimization of the merit function defining image quality.Type: ApplicationFiled: August 14, 2018Publication date: March 7, 2019Applicant: Luminit, LLCInventors: Dmitry Voloschenko, Engin B. Arik, Fedor Dimov, Kevin Yu, Khin (a/k/a Lillian) Swe Yin, Neven Rakuljic